Question

jupiters moon europa orbits the planet at a distance of about 671,030 km. what is the correct way to write this distance in scientific notation? a. 67.103×10^{-4} km b. 6.7103×10^{5} km c. 67.103×10^{4} km d. 6.7103×10^{-5} km

Explanation:

Step1: Recall scientific - notation form

Scientific notation is $a\times10^{n}$, where $1\leqslant|a|\lt10$ and $n$ is an integer.

Step2: Rewrite 671030

Move the decimal point 5 places to the left to get $a = 6.7103$. Since we moved the decimal point 5 places to the left, $n = 5$. So, $671030=6.7103\times 10^{5}$.

Answer:

B. $6.7103\times 10^{5}$ km